NPPES file of Aug 9, 2026

Chieko N. Misaki, M.D.

Internal Medicine Physician · Clackamas, OR

Chieko N. Misaki, M.D. is an internal medicine physician with a practice address in Clackamas, Oregon, and NPI 1225093172, issued on Apr 20, 2006. Check the license (Oregon MD22012, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1225093172
Name
Chieko N. Misaki
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MD22012 OR
Self-reported in NPPES; status is on the state search
Practice location
10180 SE Sunnyside RD, Clackamas, OR 97015
Phone
(503) 652-2880
Enumerated
Apr 20, 2006
Record last updated
Feb 4, 2022
Fax
(503) 571-5840
Medicaid IDs
287404 OR
8292328 WA
Medicare enrollment
Enrolled (PECOS I20080408000042); accepts Medicare assignment
Medical or professional school
Oregon Health Sciences University School Of Medicine, 1998
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 10180 SE Sunnyside RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Aaron Abajian, MDDiagnostic Radiology Physician1942732300
  2. Samer Abufadil, MDInternal Medicine Physician1750437653
  3. Jeremy Adler, M.D.Anatomic Pathology & Clinical Pathology Physician1548617483
  4. Alejandro Aguilar, PA-CPhysician Assistant1740940006
  5. Usman Ahmad, D.O.Internal Medicine Physician1326288697
  6. Hyun Jung AhnPhysical Therapist1245014703

Verify Chieko N. Misaki in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD22012
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Oregon license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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83% fewer Medicare Part D claims than the average internal medicine physician in 2024

551 Medicare Part D claims for 160 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 19 claims were for opioids.

  1. Chieko Misaki551
  2. Specialty average3,176

Most prescribed

  1. Jardiance35 claims
  2. Pantoprazole Sodium32 claims
  3. Clopidogrel29 claims
  4. Atorvastatin Calcium27 claims
  5. Losartan Potassium19 claims
  6. Amlodipine Besylate16 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Kaiser Foundation Health Plan OF The NorthwestClackamas, OR

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Chieko N. Misaki among 2,116 internal medicine physician records in Oregon

Chieko N. Misaki, M.D. is one of 2,116 internal medicine physician records with a practice address in Oregon. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 54% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated1998 · median 2008 among the 1,232 with a school on file
  • Record last updated2022 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

101 internal medicine physician records list a practice address in Clackamas

They are 101 of the 2,098 NPPES records with a practice address in Clackamas, and 2,116 internal medicine physician records in Oregon.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Lisa Ashcraft, MDClackamas, OR 970151801851746
  2. Kirthika Balakrishnan, MDClackamas, OR 970151881655256
  3. Stephanie Cha, MDClackamas, OR 970151902832371
  4. Alla Comardelle, M.D.Clackamas, OR 970151558397034
  5. Gregory Garcia, MDClackamas, OR 970151922036219
  6. Randall Gore, M.D.Clackamas, OR 970151639163447
  7. Gene Hong, M.D.Clackamas, OR 970151417905506
  8. Alice Nayak, MDClackamas, OR 970151013962513

Common questions

What is Chieko N. Misaki, M.D.'s NPI number?

Chieko N. Misaki, M.D.'s National Provider Identifier (NPI) is 1225093172, issued on Apr 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Chieko N. Misaki, M.D. located?

The NPPES record lists a practice address at 10180 SE Sunnyside RD, Clackamas, OR, 97015. Phone: (503) 652-2880. Providers update this record themselves, so call before visiting.

How can I verify Chieko N. Misaki, M.D.'s license?

NPPES lists Oregon license number MD22012, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Chieko N. Misaki, M.D. prescribe under Medicare Part D?

In 2024, Chieko N. Misaki, M.D. had 551 Medicare Part D claims for 160 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.